{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949123,-0.314906,0.000000,0.000000,0.116015,-0.349668,0.929663,0.000000,-0.292488,0.881555,0.370555,0.000000,-1866386.744535,5625266.404753,2348708.583580,1],    "boundingVolume": {    "region": [1.891100,0.379549,1.891208,0.379664,0.000000,52.732610]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/18_7690.b3dm"}}}